Question: “how can I clean inside a double paned window? Our home is 12 years old with the original tilt-in windows. their is grime, spider web looking material and a film built up on the inside of the double panes. help!”
Double paned windows utilize two pieces of glass that are constructed with an airtight seal between them. This seal is designed to lock the air in so it can act as an insulator. If water or dirt starts to build up between the two panes, it is an indication that this seal has been broken. This break can be as small as a pinhole.
In order to clean between the two pieces of glass, the windows would have to be completely taken apart which would really break the seal. It is not possible to reseal the window without hiring a professional. Unfortunately, this means it’s not possible to clean between the two glass panes without ruining the window. If the seal is broken and dirt/moisture is starting to show, it is best to have the window replaced.